Big-eared opossum vs Common Seal

Didelphis aurita compared with Phoca vitulina

Key Differences

Big-eared opossum is Least Concern while Common Seal is Near Threatened.

Taxonomic Classification

Rank	Big-eared opossum	Common Seal
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Didelphimorphia (Didelphimorphia)	Pinnipedia (Seals & Sea Lions)
Family	Didelphidae	Phocidae (True Seals)
Genus	Didelphis	Phoca (Harbor Seals)
Species	Didelphis aurita	Phoca vitulina

Evolutionary Relationship

Big-eared opossum and Common Seal share a common ancestor at the Class level: Mammalia. (Mammals)

View Class: Mammalia

Conservation Status

Big-eared opossum

LC — Least Concern

Common Seal

NT — Near Threatened

Population: ~500.0K

Trend: Stable →

Physical Characteristics

Attribute	Big-eared opossum	Common Seal
Diet	—	Carnivore
Average Lifespan	—	30 years
Average Length	—	1.7 m
Average Weight	—	80.0 kg

Habitat & Geographic Range

Big-eared opossum

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Common Seal

Habitat

Typically found in diverse ecosystems where prey species are available.

Range

Found across Europe (7 countries) and North America (United States). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Big-eared opossum

The Big-eared opossum (Didelphis aurita) is a species in the genus Didelphis. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Common Seal

The most widely distributed pinniped, harbor seals inhabit temperate and subarctic coastal waters of both the North Atlantic and North Pacific. Adults reach up to 130 kg and spend roughly equal time at sea hunting fish, squid, and crustaceans and hauling out on beaches or rocks to rest. Their large, expressive eyes are adapted for underwater vision in low light. Harbor seals are a critical food source for orcas, sharks, and polar bears.